/* System font stacks — sem dependência externa.
           Sans:  San Francisco (macOS/iOS/Safari), Segoe UI (Windows/Edge),
                  Roboto (Chrome Android), Liberation/Ubuntu (Linux), fallbacks.
           Mono:  ui-monospace (Safari), SF Mono (macOS), Consolas (Windows),
                  Menlo (legado macOS), Liberation Mono (Linux). */
        :root {
            --accent:    #00C58E;
            --accent-dk: #00A876;
            --accent-soft: rgba(0, 197, 142, 0.08);
            --accent-glow: rgba(0, 197, 142, 0.20);
            --ink:       #111318;
            --ink-2:     #2B2F3A;
            --sub:       #5A6070;
            --muted:     #9AA0B2;
            --border:    #DDE0E8;
            --border-hi: rgba(0, 197, 142, 0.45);
            --bg:        #F4F6FA;
            --bg-soft:   #EDF0F5;
            --card:      #FFFFFF;
            --shadow-sm: 0 1px 2px rgba(17, 19, 24, 0.04), 0 1px 3px rgba(17, 19, 24, 0.06);
            --shadow-md: 0 4px 12px rgba(17, 19, 24, 0.06), 0 2px 4px rgba(17, 19, 24, 0.04);
            --shadow-lg: 0 20px 40px -12px rgba(0, 168, 118, 0.22), 0 8px 16px rgba(17, 19, 24, 0.06);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html, body { height: 100%; }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg);
            color: var(--ink);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            position: relative;
        }

        /* Decorative soft gradient at top (acento sutil, claro) */
        body::before {
            content: '';
            position: fixed;
            top: -300px; left: 50%; transform: translateX(-50%);
            width: 1200px; height: 600px;
            background: radial-gradient(ellipse at center, var(--accent-soft), transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        /* ============ HEADER ============ */
        header {
            position: relative;
            z-index: 2;
            padding: 1.25rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .brand img { height: 36px; width: auto; }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }
        .brand-text strong {
            font-weight: 700;
            font-size: 1.15rem;
            letter-spacing: -0.02em;
            color: var(--ink);
        }
        .brand-text small {
            color: var(--sub);
            font-size: 0.7rem;
            font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        .header-meta {
            display: flex;
            gap: 1.25rem;
            align-items: center;
            font-size: 0.8rem;
            color: var(--sub);
            font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
        }
        .env-badge {
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            background: var(--accent-soft);
            border: 1px solid rgba(0, 197, 142, 0.25);
            color: var(--accent-dk);
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            font-weight: 500;
        }

        /* ============ HERO ============ */
        main {
            flex: 1;
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 3.5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }

        .hero {
            text-align: center;
            margin-bottom: 3.5rem;
            animation: fadeIn 0.7s ease-out;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            background: var(--card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
            font-size: 0.7rem;
            color: var(--sub);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-bottom: 1.5rem;
        }
        .hero-badge::before {
            content: '';
            width: 6px; height: 6px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px var(--accent);
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 700;
            letter-spacing: -0.03em;
            line-height: 1.1;
            margin-bottom: 1.25rem;
            color: var(--ink);
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dk) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p {
            font-size: clamp(1rem, 1.6vw, 1.15rem);
            color: var(--sub);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.55;
        }

        /* ============ CARDS ============ */
        .cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 1.5rem;
            width: 100%;
            max-width: 880px;
        }

        .card {
            position: relative;
            padding: 2rem;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            text-decoration: none;
            color: inherit;
            transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
            overflow: hidden;
            isolation: isolate;
            box-shadow: var(--shadow-sm);
            animation: fadeInUp 0.6s ease-out backwards;
        }
        .card:nth-child(1) { animation-delay: 0.1s; }
        .card:nth-child(2) { animation-delay: 0.2s; }

        .card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 50% 36%, var(--accent-glow), transparent 44%);
            opacity: 0;
            transition: opacity 0.3s;
            z-index: -1;
        }

        .card:hover {
            border-color: var(--border-hi);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .card:hover::before { opacity: 1; }

        .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: grid;
            place-items: center;
            background: var(--accent-soft);
            border: 1px solid rgba(0, 197, 142, 0.2);
            margin-bottom: 1.5rem;
            transition: all 0.3s;
        }
        .card-icon svg { width: 28px; height: 28px; }
        .card:hover .card-icon {
            background: rgba(0, 197, 142, 0.14);
            transform: scale(1.05);
        }

        .card h2 {
            font-size: 1.35rem;
            font-weight: 600;
            margin-bottom: 0.35rem;
            letter-spacing: -0.02em;
            color: var(--ink);
        }
        .card-role {
            font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
            font-size: 0.7rem;
            color: var(--accent-dk);
            text-transform: uppercase;
            letter-spacing: 0.15em;
            margin-bottom: 1rem;
            font-weight: 500;
        }
        .card p {
            color: var(--sub);
            line-height: 1.55;
            font-size: 0.95rem;
            margin-bottom: 1.75rem;
            min-height: 3.6em;
        }
        .card-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            color: var(--accent-dk);
            font-size: 0.9rem;
            transition: gap 0.3s;
        }
        .card:hover .card-cta { gap: 0.9rem; }
        .card-cta svg { width: 16px; height: 16px; }

        /* ============ FOOTER ============ */
        footer {
            position: relative;
            z-index: 2;
            padding: 1.5rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', 'Courier New', monospace;
            font-size: 0.75rem;
            color: var(--muted);
            border-top: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(8px);
        }
        footer a { color: var(--sub); text-decoration: none; }
        footer a:hover { color: var(--accent-dk); }

        /* ============ Animations ============ */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to   { opacity: 1; transform: translateY(0); }
        }
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to   { opacity: 1; transform: translateY(0); }
        }

        @media (max-width: 640px) {
            header { padding: 1rem; }
            .brand-text small { display: none; }
            .header-meta { display: none; }
            main { padding: 2rem 1rem; }
            footer { flex-direction: column; gap: 0.5rem; text-align: center; padding: 1rem; }
        }

        @media (prefers-reduced-motion: reduce) {
            * { animation: none !important; transition: none !important; }
        }